Preparing a BufferHow many moles of NH4Cl must be added to
Chapter 10, Problem 4PE(choose chapter or problem)
Problem 4PE
Preparing a Buffer
How many moles of NH4Cl must be added to 2.0 L of 0.10 M NH3 to form a buffer whose pH is 9.00? (Assume that the addition of NH4Cl does not change the volume of the solution.)
Calculate the concentration of sodium benzoate that must be present in a 0.20 M solution of benzoic acid (C6H5COOH) to produce a pH of 4.00. Refer to Appendix D.
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